Adjustable perimeter weighting lets you control ball flight with a sliding 16-gram weight to allow you to hit straighter shots or create draw/fade bias.A new, lighter triaxial carbon crown is made with a material called T2C which features a tighter weave, allowing weight to be distributed in the head to boost forgiveness and MOI on off-center hits.Callaway continues to utilize Jailbreak Technology, two internal bars that connect the crown and the sole to stiffen and stabilize the club head, generating faster ball speed off the face.The ripples on the inner side of the face are forged from special titanium and heat treated to create a combination of flexibility, speed, and strength.Flash Face Technology features a unique mapping of subtle ripples on the back of the face in a pattern developed by artificial intelligence through machine learning to create the best possible pattern to maximize ball speed in the center of the face.Callaway’s 2019 Epic Flash driver combines the new Flash Face Technology with their signature Jailbreak Technology to generate more ball speed and distance.